Preliminary Technical Information

AD6426

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no

obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any

infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent

rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98)

- 12 -

Confidential Information

Table 4. H8 Peripheral Register Contents

#

7

6

5

4

3

2

1

0

0

ODD

1

BRR[3:0]

2

TIE

RIE

TE

RE

AE

DATEN

CLKPOL

CLKEN

3

Transmit[7:0]

4

TDRE

RDRF

ORER

ERS

PER

TEND

5

Receive[7:0]

6

10

RxData[7:0]

10

TxData[7:0]

10

BRR[7:0]

11

EDSSI

ELSI

ETBEI

ERBFI

11

BRR[15:8]

12

FIFO ST

FIFO ST

InterruptID[2:0]

Int Pend

12

RxLevel[1:0]

DMA

TX FIFO

RX FIFO

FIFO EN

13

DLAB

SET BRK

Stick Par.

Ev. Parity

Parity EN

Stop Bits

WLS[1:0]

14

Loop

Out2

Out1

RTS

DTR

15

Error Rx FIFO

TEMT

THRE

Break Interrupt

Framing Error

Parity Error

Overrun Error

Data Ready

16

DCD

RI

DSR

CTS

DDCD

TERI

DDSR

DCTS

17

SCR[7:0]

18

RxData[7:0]

18

TxData[7:0]

19

MRESET

UIB Enable

PROC

26

TE

RE

FE

PE

BI

OE

27

MODEM

TX Level

RX Time

RX Level

28

Tx Trigger Level [3:0]

Rx Trigger Level [3:0]

29

Chars in TX Buffer [3:0]

Chars in Rx Buffer [3:0]

32

RxData[7:0]

32

TxData[7:0]

32

BRR[7:0]

33

EDSSI

ELSI

ETBEI

ERBFI

33

BRR[15:8]

34

FIFO ST

FIFO ST

InterruptID[2:0]

Int Pend

R

35

DLAB

SET BRK

Stick Par.

Ev. Parity

Parity EN

Stop Bits

WLS[1:0]

R/W

36

Loop

Out2

Out1

RTS

DTR

37

Error Rx FIFO

TEMT

THRE

Break Interrupt

Framing Error

Parity Error

Overrun Error

Data Ready

38

DCD

RI

DSR

CTS

DDCD

TERI

DDSR

DCTS

39

SCR[7:0]

48

TEST

RX MODE

CLOCK

TX ENABLE

CROSSPOINT

SWITCH

UCONN

SWITCH

R/W

49

SDORIE

SDIROE IE

SDIRIE

SDOR EMT

SDIR OE

SDIR FULL

50

Receive[15:8]

51

Receive[7:0]

52

Transmit[15:8]

53

Transmit[7:0]

64/65

Data[7:0]